Earthquake with magnitude of Md 2.6 on date 19-09-1986 and time 10:59:00 (Italy) in region Costa Ligure centro orientale (Genova)

A magnitude Md 2.6 earthquake occured in region: Costa Ligure centro orientale (Genova), on

  • 19-09-1986 08:59:00 (UTC)
  • 19-09-1986 10:59:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.22, 9.13 at 5 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Portofino GE 11 420 420
Santa Margherita Ligure GE 15 9338 9758
Camogli GE 15 5378 15136
Recco GE 16 9752 24888
Rapallo GE 17 29796 54684
Zoagli GE 17 2472 57156
Sori GE 17 4205 61361
Pieve Ligure GE 18 2544 63905
Avegno GE 19 2525 66430
Bogliasco GE 19 4488 70918
Chiavari GE 19 27398 98316
Lavagna GE 20 12791 111107

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km SE of Genova (586655 inhabitants)
53 Km E of Savona (61345 inhabitants)
57 Km W of La Spezia (93959 inhabitants)
79 Km W of Carrara (63133 inhabitants)
83 Km W of Massa (69479 inhabitants)
88 Km SE of Alessandria (93943 inhabitants)
98 Km W of Viareggio (62467 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 1000 Md 2.6
M 2.6
1986-09-19
08:59:00
44.22 9.13 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 34309
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-09-19 08:59:00 ± 0.397
Latitude 44.22 ± 0.03
Longitude 9.13 ± 0.02
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 34309

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 3780.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 189
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00219
Epicentral distance of station farthest from the epicenter (degree) 0.01465
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

Md:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 34309
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:34:52

M:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 34309
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:48:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ORX.Z. 1986-09-19T08:59:53.70 10.0 undecidable manual SN 330 0.0147 2.89 0
--.IMP.Z. 1986-09-19T08:59:33.80 10.0 undecidable manual SG 251 0.0084 0.63 0.6
--.ROB.Z. 1986-09-19T08:59:30.70 10.0 undecidable manual SG 275 0.0081 -1.39 0.2
--.ORX.Z. 1986-09-19T08:59:30.10 10.0 undecidable manual PN 330 0.0147 0.7 1
--.SOO.Z. 1986-09-19T08:59:28.80 10.0 undecidable manual PN 281 0.0133 1.49 0.4
--.FIN.Z. 1986-09-19T08:59:24.90 10.0 undecidable manual SG 269 0.0059 0.63 0.6
--.STV.Z. 1986-09-19T08:59:24.70 10.0 undecidable manual PN 271 0.0116 -0.03 1.6
--.CK1.Z. 1986-09-19T08:59:23.00 10.0 undecidable manual SG 288 0.0057 -0.66 0.6
--.BVT.Z. 1986-09-19T08:59:20.30 10.0 undecidable manual SG 61 0.0049 -0.46 0.7
--.IMP.Z. 1986-09-19T08:59:19.30 10.0 undecidable manual PG 251 0.0084 0.07 1.9
--.ROB.Z. 1986-09-19T08:59:18.30 10.0 undecidable manual PG 275 0.0081 -0.3 1.8
--.FIN.Z. 1986-09-19T08:59:13.80 10.0 undecidable manual PG 269 0.0059 -0.28 1.9
--.CK1.Z. 1986-09-19T08:59:12.70 10.0 undecidable manual PG 288 0.0057 -1.04 1
--.BVT.Z. 1986-09-19T08:59:11.70 10.0 undecidable manual PG 61 0.0049 -0.36 1.8
--.GEN.Z. 1986-09-19T08:59:09.70 10.0 undecidable manual SG 325 0.0022 -0.03 0.8
--.GEN.Z. 1986-09-19T08:59:04.80 10.0 undecidable manual PG 325 0.0022 -0.89 1.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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